terraform/helper/resource/grpc_test_provider.go

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package resource
import (
"context"
"net"
"time"
"google.golang.org/grpc/test/bufconn"
"github.com/hashicorp/terraform/helper/plugin"
tfplugin "github.com/hashicorp/terraform/plugin"
"github.com/hashicorp/terraform/plugin/proto"
"github.com/hashicorp/terraform/providers"
"github.com/hashicorp/terraform/terraform"
"google.golang.org/grpc"
)
// GRPCTestProvider takes a legacy ResourceProvider, wraps it in the new GRPC
// shim and starts it in a grpc server using an inmem connection. It returns a
// GRPCClient for this new server to test the shimmed resource provider.
func GRPCTestProvider(rp terraform.ResourceProvider) providers.Interface {
listener := bufconn.Listen(256 * 1024)
grpcServer := grpc.NewServer()
p := plugin.NewGRPCProviderServerShim(rp)
proto.RegisterProviderServer(grpcServer, p)
go grpcServer.Serve(listener)
conn, err := grpc.Dial("", grpc.WithDialer(func(string, time.Duration) (net.Conn, error) {
return listener.Dial()
}), grpc.WithInsecure())
if err != nil {
panic(err)
}
var pp tfplugin.GRPCProviderPlugin
client, _ := pp.GRPCClient(context.Background(), nil, conn)
grpcClient := client.(*tfplugin.GRPCProvider)
grpcClient.TestListener = listener
return grpcClient
}